Lighting system now works and does illumination for the whole map plus entities, but not walls or multiple lights yet.

map.hpp

@@ -32,17 +32,14 @@ void add_neighbors(Matrix &closed, size_t j, size_t i);
 
 class Map {
 public:
+  int $limit;
   Matrix $input_map;
   Matrix $walls;
   Matrix $paths;
+  Matrix $lighting; // BUG: this is not the place
   std::vector<Room> $rooms;
-  int $limit = 0;
 
-  // make explicit
-  Map(Matrix input_map, Matrix walls_map, int limit) :
-    $input_map(input_map),
-    $walls(walls_map), $limit(limit) {
-  }
+  Map(Matrix input_map, Matrix walls_map, int limit);
 
   // make random
   Map(size_t width, size_t height);
@@ -51,6 +48,7 @@ public:
   Map(Map &map) = delete;
 
   Matrix& paths() { return $paths; }
+  Matrix& lighting() { return $lighting; }
   Matrix& input_map() { return $input_map; }
   Matrix& walls() { return $walls; }
   int limit() { return $limit; }